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241018s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202410952
|2 doi
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|a pubmed24n1623.xml
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|a eng
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|a Li, Bowen
|e verfasserin
|4 aut
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|a Electrode-Dependent and Tunable Sub-to-Super-Linear Responsivity in Mott Material-Enabled Near-Infrared Photodetectors for Advanced Near-Sensor Image Processing
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 05.12.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Brain-like intelligence is ushering humanity into an era of the Internet of Perceptions (IoP), where the vast amounts of data generated by numerous sensing nodes pose significant challenges to transmission bandwidth and computing hardware. A recently proposed near-sensor computing architecture offers an effective solution to reduce data processing delays and energy consumption. However, a pressing need remains for innovative hardware with multifunctional near-sensor image processing capabilities. In this work, Mott material (vanadium dioxide)-based photothermoelectric near-infrared photodetectors are developed that exhibit electrode-dependent and tunable super-linear photoresponse (exponent α > 33) with ultralow modulation bias. These devices demonstrate an opto-thermo-electro-coupled phase transition, resulting in a large photocurrent on/off ratio (>105), high responsivity (≈500 A W-1), and well detectivity (≈3.9 × 1012 Jones), all while maintaining rapid response speeds (τr = 2 µs and τd = 5 µs) under the bias of 1 V. This electrode-dependent super-linear response is found to arise from the electron doping effect determined by the polarity of the Seebeck coefficient. Furthermore, the work showcases intensity-selective near-sensor processing and night vision pattern reorganization, even with noisy inputs. This work paves the way for developing near-sensor devices with potential applications in medical image preprocessing, flexible electronics, and intelligent edge sensing
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|a Journal Article
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|a near‐infrared photodetector
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|a near‐sensor processing
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|a phase transition
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|a super‐linear
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|a Xie, Pengshan
|e verfasserin
|4 aut
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|a Chen, Baojie
|e verfasserin
|4 aut
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|a Meng, You
|e verfasserin
|4 aut
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|a Wang, Weijun
|e verfasserin
|4 aut
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|a Yang, Mingwei
|e verfasserin
|4 aut
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|a Gao, Boxiang
|e verfasserin
|4 aut
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|a Quan, Quan
|e verfasserin
|4 aut
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|a Yan, Yan
|e verfasserin
|4 aut
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|a Ding, Mingqi
|e verfasserin
|4 aut
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|a Li, Danfeng
|e verfasserin
|4 aut
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|a Chan, Chi Hou
|e verfasserin
|4 aut
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|a Ho, Johnny C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 49 vom: 17. Dez., Seite e2410952
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:36
|g year:2024
|g number:49
|g day:17
|g month:12
|g pages:e2410952
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|u http://dx.doi.org/10.1002/adma.202410952
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